Bolt-turning head.



No. 760,993. PATENTED MAY 24, 1904-. B. DE K. JACKSON. BOLT TURNINGHEAD. APPLICATION FILED SEPT. 19. 1903. N0 MODEL.

5 AT J3 IN H 11 T Y Q 1 15 I I 21 I i' '1 1:1 tni x II I II II I: Gmllll ll INVENTOH A 7TOHNE UNITED STATES Patented May 24, 1904.

PATENT OFFICE.

BOLT-TURNING HEAD.

SPECIFICATION formingpart of Letters Patent No. 760,993, dated. May 24,1904.

Application filed September 19, 1903. Serial No. 173,851. (No model.)

To all whom it may concern.-

Be it known that I, BYRON DE KALB J ACK- SON, a citizen of the UnitedStates, and a resihead embodying my invention.

dent of Altoona, in the county of Blair and State of Pennsylvania, haveinvented a new and Improved Bolt-Turning Head, of which the following isa full, clear, and exact description.

This invention relates to improvements in devices for turning bolts,rivets, or the like, an object being to provide a turning-head by meansof which the work may be rapidly done and which may be quickly adjustedfor different sizes of bolts.

I will describe a bolt-turning head embodying my invention and thenpoint out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forminga part ofthis specification, in which similar characters ,of reference indicatecorresponding parts in all the figures.

Figure 1 is a face view of a bolt-turning Fig. 2 is a side View thereof,partly in section; and Fig. 3 is a section on the line 3 3 of Fig. 1.

The turning-head comprises two sections 5 6, mounted to slide,respectively, in guides 7 8. The guides are here shown as channeled, theopposite walls of the channel being undercut, as at 9, and each memberor section of the head is provided with'dovetailed lugs 9 for engagingin its channel. The head-sections are of soft metal or other suitablematerial, and each section is provided with a channel 10, in which aguide 11 is mounted to slide. These guides or stays 11 are designed toengage with the 7 bolt or the work to be turned, and they are held asadjusted to the bolt by means of setbolts 12, extending through tappedholes in the head-sections and engaging with the outer ends of theguides or stays, and they are further held by means of lateral bolts 13.The head-sections are also provided with channels 14, in which cutters15 are lengthwise adjustable. They are held as adjusted lengthwise bymeans of set-bolts 16, and they are held from outward movement by meansof clips 17, fastened to the head members and engaging over the outersurfaces of the tools.

It will be noted that the guides 11 and the tools all converge towardthe center and that the tools are opposite each other, as are also theguides. It will be noted also that the tools project slightly outward ofthe face of the head, so as to allow for clearance while turning and toallow for finishing of the underside of the head of a bolt.

Having thus described my invention, I claim as new and desire to secureby Letters Patent A bolt-turning head comprising two sections, eachsection having divergent channels in its outer side, a guide in onechannel of each section, a cutting-tool in the other channel of eachsection, the said guides in the two sections being in axial alinement,the said cuttingtools in the two sections being also in axial alinement,dovetailed lugs on the sides of the sections opposite the channeledsides, and guide members having channels in which said lugs areslidable.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

BYRON DE K ALB JACKSON.

Witnesses:

EDGAR L. KURTZ, JOHN L. RoNooRoNI.

